Product image of Metopirone (Metyrapone) supplied by GNH India

Metopirone

Active Ingredient:
Metyrapone
Origin:
EU

Metopirone (Metyrapone)

Metyrapone, the active ingredient in Metopirone, is a steroidogenesis inhibitor presented as a / for oral use. It is used in diagnostic testing for adrenal insufficiency and in the treatment of Cushing's syndrome.

GNH India supplies Metopirone as a licensed, GDP-compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Esteve Pharmaceuticals, S.A.

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Indications & Clinical Uses

Metopirone acts on adrenal steroidogenesis and is employed in endocrine diagnostic and therapeutic protocols.

  • Adrenal insufficiency (diagnostic testing): helps assess residual cortisol production capacity.
  • Cushing's syndrome (therapeutic): reduces cortisol synthesis to control hypercortisolism.
  • Endocrine research (experimental): used to investigate 11β‑hydroxylase function and steroid pathway dynamics.

How It Works

  • Metyrapone selectively inhibits the enzyme 11β‑hydroxylase (CYP11B1) in the adrenal cortex, blocking the final step of cortisol biosynthesis. This enzymatic blockade decreases cortisol output while allowing accumulation of precursor steroids, which can be measured for diagnostic purposes or leveraged therapeutically to lower excess cortisol levels.

Side Effects

Metyrapone may cause a range of adverse reactions, varying from mild to severe.

Common Side Effects

  • Nausea
  • Dizziness
  • Headache
  • Fatigue

Serious or Rare Side Effects

  • Adrenal crisis
  • Severe hypotension
  • Allergic reaction (rash, swelling, anaphylaxis)

Precautions & Warnings

When using Metopirone, clinicians should consider several safety measures.

  • Hepatic impairment: adjust dose or monitor liver function.
  • Electrolyte balance: monitor sodium and potassium levels regularly.
  • Abrupt discontinuation: taper to avoid adrenal insufficiency.
  • Pregnancy: evaluate risk‑benefit before prescribing.
  • Concomitant adrenal suppression: assess adrenal function before stopping therapy.
  • Store at ambient temperature: keep below 25°C, retain in original packaging, protect from moisture.

Avoid Interactions

Metyrapone can influence the activity of several co‑administered medicines.

Major Interactions (Avoid)

  • Ketoconazole: additive cortisol suppression may precipitate adrenal crisis.
  • Carbamazepine: induces metabolism, reducing metyrapone efficacy.

Moderate Interactions (Monitor Closely)

  • Warfarin: possible alteration of INR, require closer monitoring.
  • Oral contraceptives: may reduce hormonal effectiveness.
  • Antihypertensives: blood pressure response may change, adjust doses as needed.

Frequently Asked Questions

Metopirone (Metyrapone) is employed primarily for diagnostic testing of adrenal insufficiency and as a therapeutic option in Cushing's syndrome to lower excess cortisol production.

Metyrapone inhibits the adrenal enzyme 11β‑hydroxylase, blocking the final step of cortisol synthesis. This reduces cortisol levels while allowing precursor steroids to accumulate, which can be measured for diagnostic purposes or used therapeutically.

The specific dose of Metopirone is determined by the prescribing clinician based on the indication, patient characteristics, and laboratory monitoring. Dosage regimens are individualized and should follow the prescriber’s instructions.

Safety data for Metyrapone in pregnancy and lactation are limited. It should only be used if the potential benefit justifies any potential risk to the fetus or infant, and the decision must be made by a qualified healthcare professional.

To order Metopirone, submit an enquiry on the product page at gnhindia.com specifying the required quantity. GNH India works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details and any necessary import documentation.

Metopirone is a steroidogenesis inhibitor that directly reduces cortisol synthesis, whereas other options such as ketoconazole, osilodrostat, or pituitary surgery target different steps or sources of excess cortisol. Choice of therapy depends on disease severity, comorbidities, and patient tolerance.

Metopirone should be stored at ambient temperature, preferably below 25 °C. Keep the product in its original packaging, protect it from moisture, and avoid exposure to direct sunlight or extreme heat.

Metopirone is administered orally. The tablet (or other oral formulation) is taken with water, and the exact timing and frequency are set by the prescribing clinician based on therapeutic goals and monitoring results.

Serious risks include adrenal crisis, severe hypotension, and allergic reactions such as anaphylaxis. Patients should be monitored for signs of acute adrenal insufficiency and instructed to seek immediate medical attention if severe symptoms develop.

Metopirone is contraindicated in patients with known hypersensitivity to Metyrapone or any excipients, and it should be used with caution in individuals with severe hepatic impairment, uncontrolled hypertension, or active adrenal insufficiency without appropriate monitoring.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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